Antiskid chain



S. l. PETERS ANTISKID CHAIN Dec. l0, 1929.

Filed July 6, 1928 Inventai- Swm n? q By ttarnqy llatented Dec. l0, 1929 SAMUEL IVAN PETERS, F TUCSON, ARIZONA ANTISKID CHAIN Application filed July 6, 1928. Serial No. 290,745.

The present invention relates to improvements in anti-skid cha-ins for automobile tires, and has for its principal object to provide a structure which will prevent circumferential and lateral skidding of the wheels of a vehicle when travelling over a wet or slippery surface.

One of the important objects of the present invention is to provide an anti-skid chain which includes a novel means for securing the ends of the side or circumferential chains together in a quick and ellicient manner, and further in such a way as to prevent the ends of the side chains becoming disconnected during the use of the chains on a vehicle wheel.

Still a further object is to provide an antiskid chain of the above mentioned character which includes diagonally disposed cross chains, the hooks associated with the respecao tive ends of each cross chain being adapted to embrace both of the sides of the adjacent links in the side chains, thereby strengthening the connection between the cross chains and the side chains and prolonging the durability of the anti-skidchains.

A further object is to provide an antieskid chain of the above mentioned character which is simple in construction, inexpensive, strong and durable, and further well adapted to the 3o purpose for which it is designed.

Other objects of the invention will become apparent as the nature of the invention proceeds and when taken in connection with the accompanying drawings.

In the accompanying drawings, forming a part of this application and wherein like reference characters designate like parts throughout the several views:

Figure 1 is a top plan view of one end portion of the anti-skid chain embodying my invention.

Figure 2 is an enlarged detail showing one of the ends of one side chain, showing my improved astening device associated therewith, and also illustrating the manner in which one end of one cross chain is connected to the adjacent link of said side chain, and

Figure 3 is an edge elevation of the astening device forming a salient part of the present invention.

In the drawing, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numerals l and 2 designate a pair of side chains that are adapt. ed to extend circumferentially around the 5 sides of a tire mounted upon a vehicle wheel in the manner well known in the art. Each of the side chains includes a plurality oil interconnected links. The circumferentially extending side chains are connected together by the cross chains 3 that extend across the tread portion of the tire.

Each ot the cross chains includes a plurality of interconnected links and attached to the respective ends of each cross chain are Y the hooks 4c, that are adapted to engage with certain of the links of the respective side chains l and 2.

As clearly illustrated in Figure l oi the drawings, the cross chains are disposed dia g- 7o onally between the circumterentially eX- tending side chains and the purpose of arranging the cross chains in a diagonal manner is to prevent lateral skidding and to Lliurther increase the traction of the vehicle wheel ffii over a slippery or wet surface.

. Each oi' the hooks l consists ot a single strand of wire bent back upon itself, intermediate its ends to provide the bight portion 5 and the spaced arms G and 7 respectively. The bight portion 5 engages with the respective end link of each cross chain while the free ends of the arms G and 7 are bent back upon themselves to torni a pair of aligned hook forming loops 8 and 9 respectively that embrace the sides oit' certain of the links of each side chain and each of the links on the side chains that is embraced by the hook l of the adjacent cross chain has its sides slightly bent inwardly at the intermediate portion '3U thereof as clearly shown in Figure 2, thereby providing a loose connection between the looped portions 8 and 9 and the adjacent link 10.

By embracing both sides ot certain ot the links of the side chains in the manner suggested in Figures l and 2, a stronger connection between the cross chains and the parallel side chains is provided, thereby prolonging the durability ofthe anti-skid chain, and furthermore there will berno possibility of the hooks 4 becoming disengaged from the adj acent links of the side chains as frequently occurs with the type of connection now em'- ployed for securing the cross chains of antiskid chains to the parallel side chains.

The invention further comprehends the provision of a novel means for securing the free ends of each side chain together and the specific construction of the fastening means will now be described.

The chain fastener is denoted generally by the reference charac-ter 11 and thesame is formed from a single piece of spring wire z that is formed at its intermediate portion with thertransversely disposed convolutions 12 to form a pivot pin receiving bore 13. The free ends of the wire extend outwardly from the respective ends of the coiled portion to form the parallel spaced arm' portions 14 and 1 5 respectively and the free ends of these arms are curved to form the oppositely disp posed hooks or bills 16 and 17 respectively.

' As clearly shown inFigure 2, the hoolrs or billsare disposed in overlapping relation and due yto theresiliency of the material from which the fastener 11 is constructed, the hooks or bills will have-a tendency to be normally disposed in abutting engagement with each other. As more clearly disclosed in Figure 3, the crown portions of the over lapping bills or hooks are fla-red outwardly with respect to Veach other, whereby to provide afmouth 18 to Yfacilitate the insertion of the free end of the other endof the side chain to be inserted betion, so that the ends of each side chain when lconnected together by the fastenerll will not be accidentally disengaged at any time, during the use of the anti-skid chain uponavehlcle wheel. f Y v It will thus be seen from the foregoingidescription that I have provided an anti-skid chain Ythat can be readily and easily attached on a vehicle wheel andwhen the parts'are ses cured, there `will be no'jpossibility'of the' chain Y `and durable and becoming disengaged fromI the wheel even during the backing up of the vehicle.

An-anti-slrid chain constructed in accord-v ance with the present invention will be strong yetvery inexpensive in its manufacture. i

While' I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to, without departing from the spirit of the invention or the scope of the appended claim.

What is claimed is A chain fastener of the class described comprising a snap hook formed from a single length of spring wire having its intermediate portion coiled and with its ends extended parallel from opposite ends of the coiled portions and terminating in opposed hooks, cooperating to form a loop with thel hooks yieldably retained in closed overlapping relation by the coil, a pin extended through the `coil yhaving heads at each end, and a link formed of a single length of wire having its intermediate portions formed into a loop and having its ends secured to opposite ends of said pin outwardly of the ends of said coiled portion.

In testimony whereof I aiix my signature.

SAMUEL IVAN PETERS.

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